Determination of the $b$-quark mass $m_b$ from the angular screening effects in the ATLAS $b$-jet shape data.

The dependence of jet shapes in $t\bar{t}$ events on the $b$-quark mass and the strong coupling is investigated. To this end, the Pythia Monte Carlo generator is used to produce samples of $t\bar{t}$ events in $pp$ collisions at $\sqrt{s} = 7 \ \mathrm{TeV}$, performing a scan over the values for th...

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Detalles Bibliográficos
Autores principales: Llorente, Javier, Cantero, Josu
Lenguaje:eng
Publicado: 28 0
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysb.2014.10.021
http://cds.cern.ch/record/1746339
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author Llorente, Javier
Cantero, Josu
author_facet Llorente, Javier
Cantero, Josu
author_sort Llorente, Javier
collection CERN
description The dependence of jet shapes in $t\bar{t}$ events on the $b$-quark mass and the strong coupling is investigated. To this end, the Pythia Monte Carlo generator is used to produce samples of $t\bar{t}$ events in $pp$ collisions at $\sqrt{s} = 7 \ \mathrm{TeV}$, performing a scan over the values for the shower QCD scale $\Lambda_s$ and the $b$-quark mass $m_b$. The obtained jet shapes are compared with recently published data from the ATLAS collaboration. From fits to the light-jet data, the Monte Carlo shower scale is determined, while the $b$-quark mass is extracted using the $b$-jet shapes. The result for the mass of the $b$-quark is $m_b = 4.86 ^{+0.49}_{-0.42}\ \mathrm{GeV}$.
id cern-1746339
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 28 0
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spelling cern-17463392022-08-10T20:23:44Zdoi:10.1016/j.nuclphysb.2014.10.021http://cds.cern.ch/record/1746339engLlorente, JavierCantero, JosuDetermination of the $b$-quark mass $m_b$ from the angular screening effects in the ATLAS $b$-jet shape data.Particle Physics - ExperimentThe dependence of jet shapes in $t\bar{t}$ events on the $b$-quark mass and the strong coupling is investigated. To this end, the Pythia Monte Carlo generator is used to produce samples of $t\bar{t}$ events in $pp$ collisions at $\sqrt{s} = 7 \ \mathrm{TeV}$, performing a scan over the values for the shower QCD scale $\Lambda_s$ and the $b$-quark mass $m_b$. The obtained jet shapes are compared with recently published data from the ATLAS collaboration. From fits to the light-jet data, the Monte Carlo shower scale is determined, while the $b$-quark mass is extracted using the $b$-jet shapes. The result for the mass of the $b$-quark is $m_b = 4.86 ^{+0.49}_{-0.42}\ \mathrm{GeV}$.The dependence of jet shapes in tt¯ events on the b -quark mass and the strong coupling is investigated. To this end, the Pythia Monte Carlo generator is used to produce samples of tt¯ events in pp collisions at s=7TeV , performing a scan over the values for the shower QCD scale Λs and the b -quark mass mb . The obtained jet shapes are compared with recently published data from the ATLAS Collaboration. From fits to the light-jet data, the Monte Carlo shower scale is determined, while the b -quark mass is extracted using the b -jet shapes. The result for the mass of the b -quark is mb=4.86−0.42+0.49GeV .The dependence of jet shapes in $t\bar{t}$ events on the $b$-quark mass and the strong coupling is investigated. To this end, the Pythia Monte Carlo generator is used to produce samples of $t\bar{t}$ events in $pp$ collisions at $\sqrt{s} = 7 \ \mathrm{TeV}$, performing a scan over the values for the shower QCD scale $\Lambda_s$ and the $b$-quark mass $m_b$. The obtained jet shapes are compared with recently published data from the ATLAS collaboration. From fits to the light-jet data, the Monte Carlo shower scale is determined, while the $b$-quark mass is extracted using the $b$-jet shapes. The result for the mass of the $b$-quark is $m_b = 4.86 ^{+0.49}_{-0.42}\ \mathrm{GeV}$.arXiv:1407.8001CERN-OPEN-2014-039FTUAM-14-28CERN-OPEN-2014-039FTUAM-14-28oai:cds.cern.ch:174633928 07 2014
spellingShingle Particle Physics - Experiment
Llorente, Javier
Cantero, Josu
Determination of the $b$-quark mass $m_b$ from the angular screening effects in the ATLAS $b$-jet shape data.
title Determination of the $b$-quark mass $m_b$ from the angular screening effects in the ATLAS $b$-jet shape data.
title_full Determination of the $b$-quark mass $m_b$ from the angular screening effects in the ATLAS $b$-jet shape data.
title_fullStr Determination of the $b$-quark mass $m_b$ from the angular screening effects in the ATLAS $b$-jet shape data.
title_full_unstemmed Determination of the $b$-quark mass $m_b$ from the angular screening effects in the ATLAS $b$-jet shape data.
title_short Determination of the $b$-quark mass $m_b$ from the angular screening effects in the ATLAS $b$-jet shape data.
title_sort determination of the $b$-quark mass $m_b$ from the angular screening effects in the atlas $b$-jet shape data.
topic Particle Physics - Experiment
url https://dx.doi.org/10.1016/j.nuclphysb.2014.10.021
http://cds.cern.ch/record/1746339
work_keys_str_mv AT llorentejavier determinationofthebquarkmassmbfromtheangularscreeningeffectsintheatlasbjetshapedata
AT canterojosu determinationofthebquarkmassmbfromtheangularscreeningeffectsintheatlasbjetshapedata

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